Door-latch



(No Mbdel.) I

D. S. SWARBRIG.

. DOOR LA-TGH. No. 427,808. PatentedMay 13, 1890.

FIG-1 i i-F 22 To all whom it may concern:

UNITED STATES PATENT OFFICE.

DAVID S. SlVARBRIG, OF PHILADELPHIA, PENNSYLVANIA.

DOOR-LATCH.

SYECIFICAIION forming part of Letters Patent No. 427,808, dated May 13,1890.

Application filed February 13, 1890. $erial No. 340,293. (No model.)

Be it known that 1, DAVID S. SWARBEIG, a citizen of the United States,residing at Philadelphia, county of Philadelphia, and State ofPennsylvania, have invented a new and useful Improvement in Door-LatchDevices, of which the following is a full, clear, and exact description,reference being had to the accompanying drawings, which form a part ofthis specification.

My invention has for its object to combine with the handle of the dooralatch which will operate to release or lift the 1ocking-bolt, thelatchbeing so arranged with reference to the handle that when the handleis grasped to slide or open the door the latch will operate upon thelocking-bolt, so that the lockingbolt will be released and the door maybe opened.

In the drawings, Figure l is a side elevation of a freight-car door,showing my improved device. Fig. 2 is a front elevation, partly insection. Fig. 3 is a longitudinal section on line :10 to, Fig. 2. Fig.4; is a perspective view of handle or clasp. Fig. 5 is a perspectiveView of latch. Fig. 6 is a perspective View of locking-bar. Fig. '7 is aperspective View of spring pressing against locking-bar. Fig. 8 is aperspective view of fixed portion of locking device.

I have illustrated my invention in use with a freight-car door, but itis applicable to any other door.

Arepresents the car; B, thelocking-bolt having the serrated or notchedend I). This locking-bolt is secured to the car-door at Z).

O is the handle or clasp secured to the cardoor at c. The handle isshown in detail in Figs. 2 and 4. Resting in the inner surface of thishandle is the latch D, which is an anglebar resting in the guides c and0 in the handle or clasp 0, (shown in Fig. 4,) the latch having amovement on the point 01, so that when the portion d rests in the guide0 the portion (1 is out of the guide 0 and vice Versa. The portion 01'of the latch projects under the locking-bolt, so that when the handle isgrasped to open the door the latch D is moved so that the end d islifted up out of the guide 0 and strikes the locking-bolt B, lifting itout of engagement with the fixed portion of the locking device and thedoor can be readily opened. The spring F, secured at f, rests upon thelocking-bolt, and when the latch is released the spring forces the boltback to its ordinary position, and in turn forces the latch so that theportion (1 rests in the guide As hereinbefore stated, the device isdescribed and shown as applied to a freight-car door.

Having now fully described my invention, what I claim and desire toprotect by Letters Patent, is

In a bolt-releasing device for doors, in combination, a locking-bolt, ahandle, guides on the inner surface of said handle, and an elbowlatchresting in said guide, said latch being so constructed that when oneportion of the latch is in the guide the other portion is out,

